I booked the cheapest room for one night and, as expected, it was very small. However, it was also immaculately clean, and the bed was very comfortable. As I was only planning to sleep there overnight, it was fine, but I wouldn't recommend it for long stays. I also don't know if the hot water would hold out long enough for 2 people to shower.
Overall, there are only 2 issues I had. 1st was the shower - someone with long hair would struggle to wash out shampoo/conditioner with the low pressure. 2nd was the lighting - with the air con on, the room was very bright. Thankfully once I got the room to a comfortable temperature I could switch it off and, with a towel under the door, it was dark enough to sleep. As others have mentioned, being able to override the auto and timer on the bathroom light would be good. It does go off after 2 minutes, but that's a long time at 2am.
Some people have complained about views from the windows, but what do they expect when the building is against another building, with a narrow alley on the other side?
Look, the staff were pleasant, the bed was comfy, and I would recommend it for anyone looking for clean, basic, comfy accommodation where they weren't planning to spend all day in their room. I'd stay there again.